- 51 Views
- Uploaded on
- Presentation posted in: General

Energy & Its Impact on Global Society

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Energy & Its Impact on Global Society

Jerome K. Williams, Ph.D.

Saint Leo University

Dept. Mathematics & Sciences

- Energy Resources & Reserves
- Energy Calculations
- Lifecycle of Energy Resource
- Energy Conservation

- Two principal questions
- How large is each resource?
- How long will it last?

- Resources that can be recovered profitably using present technology are called reserves

- Each type of energy reserve is measured in units appropriate to its physical form
- Tons of coal(ton)
- Barrels of oil(bbl)
- Trillion cubic feet natural gas(tcf)

Source: US Energy Information Administration

- Common Base Unit for Energy is called the British Thermal Unit (Btu)
- The amount of energy required to raise the temperature of 1 lb of water by 1 degree Fahrenheit.
- Approximately the energy released by burning a kitchen match

- U.S. oil reserves are estimated at 29 billion barrels, and we currently produce about 6 million barrels a day. How long, in years, will these reserves last at this production rate?
- Answer:13 years

- Use or exploitation of resource shows three stages
- Initial period of increase
- Production reaches a maximum
- Decline phase eventually going to zero

- Total energy consumed in any activity is a result of two factors:
- How much energy output vs. amount you input?
- What is the length or amount of that activity?

- Efforts of energy conservation usually concentrate on two approaches:
- Technical Fix: goal is to reduce energy required for activity
- Lifestyle Change: Modify behavior to reduce frequency of activity

- Questions: 1, 3, 13, 17